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Expired Canadian patentCanada

Elastomer composition for covering materials and covering materials for industrial parts comprising the same

CA 2096218 C · Owner: Asada, Yasushi · Inventors: Hikasa, Tadashi; Hosoda, Satoru; Hamanaka, Tatsuo

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Abstract From the Canadian patent

An elastomer composition for covering, materials excellent in light resistance and moldability and covering materials for industrial parts which comprises said composition are provided. This composition comprises a partially crosslinked mixture consisting of (A) an olefinic copolymer rubber (B) an, olefinic polymer, (C) a crystalline paraffin and (D) a mineral oil.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed May 13, 1993 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 13, 1993
GrantedApril 8, 2003
Term endedMay 13, 2013
Patent numberCA 2096218 C
Classification (IPC)C08L23/16 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMay 13, 1993Patent grantedApril 8, 2003Term endedMay 13, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.